Portion of a handset



FIG. 1 is a front view of a portion of a handset showing our new design;

FIG. 2 is a perspective view thereof;

FIG. 3 is a top view thereof; and,

FIG. 4 is a right side view thereof.

The uneven broken line showing of the remainder of the handset is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a handset, as shown and described. 